Israel Medical Association Journal

Background: Acute mesenteric ischemia (AMI) is a medical condition with high levels of morbidity and mortality. However, most patients suspected of AMI will eventually have a different diagnosis. Nevertheless, these patients have a high risk for co-morbidities.

Objectives: To analyze patients with suspected AMI with an alternative final diagnosis, and to evaluate a machine learning algorithm for prognosis prediction in this population.

Methods: In a retrospective search, we retrieved patient charts of those who underwent computed tomography angiography (CTA) for suspected AMI between January 2012 and December 2015. Non-AMI patients were defined as patients with negative CTA and a final clinical diagnosis other than AMI. Correlation of past medical history, laboratory values, and mortality rates were evaluated. We evaluated gradient boosting (XGBoost) model for mortality prediction.

Results: The non-AMI group comprised 325 patients. The two most common groups of diseases included gastrointestinal (33%) and biliary-pancreatic diseases (27%). Mortality rate was 24.6% for the entire cohort. Medical history of chronic kidney disease (CKD) had higher risk for mortality (odds ratio 2.2). Laboratory studies revealed that lactate dehydrogenase (LDH) had the highest diagnostic ability for predicting mortality in the entire cohort (AUC 0.70). The gradient boosting model showed an area under the curve of 0.82 for predicting mortality.

Conclusions: Patients with suspected AMI with an alternative final diagnosis showed a 25% mortality rate. A past medical history of CKD and elevated LDH were associated with increased mortality. Non-linear machine learning algorithms can augment single variable inputs for predicting mortality.

Background: Granulomatosis with polyangiitis (GPA) otologic manifestations include conductive and sensorineural hearing loss (HL). Vasculitis is assumed to be the primary cause of otologic manifestations. Deaf patients and patients with HL who do not benefit from hearing aids can benefit from cochlear implants (CI). There are currently no specific guidelines for treatment of patients with GPA suited for CI.

Objectives: To assess whether patients who are deaf due to GPA are good candidates for CI and if prior surgical or medical treatment of the inflammation are needed.

Methods: A case report is presented.

Results: A 71-year-old female patient with GPA and bilateral profound HL underwent CI. Prior to CI, preparation consisted of audiological evaluations by an otolaryngologist and a rheumatologist, followed by a course of prednisone and methotrexate for middle ear and nasal inflammations. CI was performed with no complications. The speech reception threshold and the monosyllabic word discrimination score after surgery were 25 dBHL and 75%, respectively.

Conclusions: Inflammation due to GPA can be controlled medically with immunosuppressive medications without subtotal petrosectomy, as in chronic suppurative otitis media. Satisfactory audiological results can be expected.

Background: Antibiotic resistance is a worldwide problem associated with increased morbidity and mortality.

Objectives: To evaluate multidrug resistant (MDR) bacteria carriage in selected populations.

Methods: Data were collected from all patients under 18 years who met our internal guidelines from 2015–2016. They were screened for carbapenem-resistant Enterobacteriaceae (CRE), extended spectrum beta-actamase (ESBL), methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-resistant enterococci (VRE). Indications for screening were non-resident non-Israeli patients (from the Palestinian Authority, Syria, and foreign patients), internal transfers from intensive care units, admission to high-risk departments, recent carriage of MDR bacteria, transfer from other hospitals, and recent hospitalization. Data were analyzed for MDR bacteria from at least one screening site (rectal, nasal, axillary, groin, throat). All data were analyzed per patient and per sample.

Results: During the study period 185/2632 positive screening sets (7%) were obtained from 725 patients. Of these, 165 patients (22.7%) were positive for at least one pathogen. Significantly fewer Israeli residents (120/615, 19.5%) tested positive compared to non-Israeli residents (45/110, 40.9%; P < 0.001). Past MDR bacteria carriage was the only significant screening indication (25/61, 41%; P < 0.001). CRE, VRE, MRSA, and ESBL prevalence rates were 0.6% (5/771), 0.5% (3/560) 0.5%, 4.2% (37/888), and 33.7% (139/413), respectively. Among non-ESBL carriers, MRSA was predominant with 38 positive cultures (n=34).

Conclusions: Non-Israeli non-residents and patients with previous positive MDR screening are at higher risk for MDR bacteria. Indications used to identify high-risk patients for drug resistant pathogens were efficacious. More effort is needed to reduce excessive sampling.

Background: Vaginal hysterectomy (VH) and colpocleisis are both used for the treatment of advanced pelvic organ prolapse (POP).

Objective: To compare short- and long-term outcomes of vaginal hysterectomy vs. colpocleisis for advanced POP.

Methods: Hospital and outpatient charts of patients who underwent VH or colpocleisis at our institution between January 2006 and December 2015 were reviewed. Clinical data were obtained and analyzed.

Results: In this study, 188 patients underwent VH and 32 patients underwent colpocleisis. The colpocleisis group was significantly older than the VH group (79.5 ± 4.5 vs. 69 ± 6.1 years respectively, P < 0.0001) and presented with significantly higher co-morbidity rates and a higher degree of POP. Perioperative blood loss was significantly lower (250 ± 7.6 ml vs. 300 ± 115 ml, P < 0.0001) and postoperative hospitalization was significantly shorter (2 ± 2.7 vs. 3 ± 2.2 days, P = 0.015) among the colpocleisis group. None of the patients from the colpocleisis group required an indwelling urethral catheter after discharge, compared to 27.5% of the patients from the VH group (P = 0.001). Total postoperative complication rate was significantly lower among the colpocleisis group (25% vs. 31% P < 0.0001). Objective recurrence of POP was significantly more common among the VH group (7% vs. 0% and 21% vs. 0% for the anterior and posterior compartments, respectively, P = 0.04).

Conclusions: Colpocleisis is associated with faster recovery, lower perioperative morbidity, and higher success rates than VH and should be considered for frail and elderly patients.

Background: Data regarding risk factors for superficial thrombophlebitis (STP) cases presenting to a hospital is limited.

Objectives: To investigate and stratify clinical and laboratory risk factors for STP

Methods: We conducted a retrospective case control study comparing patients presenting to the emergency department with STP and age- and gender-matched controls. We collected data on multiple risk factors and five blood indices.

Results: The study comprised 151 patients and matched controls. Patients with STP were more likely to have varicose veins (43.7% vs. 5.3%, P < 0.001), recent immobilization (14.6% vs. 1.3%, P < 0.001), obesity (36.4% vs. 18.5%, P = 0.001), a history of venous thromboembolism (VTE) or STP (27.2% vs. 0.7%, P < 0.001), and inherited thrombophilia (9.3% vs. 1.3%, P = 0.002). Following multivariate analysis, all five risk factors remained significant, with a history of VTE or STP associated with the largest risk (odds ratio [OR] 35.7), followed by immobilization (OR 22.3), varicose veins (OR 12.1), inherited thrombophilia (OR 6.1), and obesity (OR 2.7). Mean platelet volume was higher (8.5 vs 7.9 fl, P = 0.003) in STP cases.

Conclusions: A history of VTE or STP, immobilization, varicose veins, inherited thrombophilia, and obesity serve as independent clinical risk factors for STP presenting to hospital.

A 49-year-old woman presented to the emergency department with a 3-day history of altered mental status. The patient’s medical history was unremarkable, and she did not take medications.

Background: The exposure to ambient particulate matter (PM) is associated with increased morbidity and mortality from respiratory, cardiovascular, and other causes. A major contribution to this adverse effect is attributed to particles at the nanoscale range (ultrafine particles [UFP] particles < 100 nm). Most of the information about human exposure to PM has been collected by environmental monitoring of inhaled particles.

Objectives: To evaluate the use of direct measuring of UFP in the sputum as a biomarker for lung inflammation and functional impairment.

Methods: The study population included 121 patients who underwent an induced sputum (IS) test as a part of a clinical evaluation for respiratory symptoms. Cell differential count was performed, and the UFP content was measured in each IS sample. The UFP content in the sputum was compared among patients with different inflammatory phenotypes based on IS granulocytes levels: eosinophilic inflammation (EI) IS eosinophils > 2.7%, neutrophilic inflammation (NI) IS neutrophils > 65%, and mixed granulocytic inflammation (MGI) including both IS eosinophils > 2.7% and IS neutrophils > 65%. The association between the IS-UFP content and pulmonary function test (PFT) parameters was also tested.

Results: Patients with MGI had a distinct profile of particles in IS, which was characterized by the highest percentage of UFP (relative to larger particles) compared to patients with EI, NI, or normal IS cell count. Furthermore, EI and NI were found to have an interaction effect regarding the IS–UFP profile, as demonstrated by the significantly different IS–UFP profile of patients with MGI compared to the profile associated with EI and NI independently. Last, the profile of UFP in the IS samples was also correlated with patient PFT. Reduced forced mid-expiratory flow (FEF) 25–75 or FEV1 were correlated with a higher IS–UFP mean size. Reduced FEF25–75 was correlated with a lower IS–UFP concentration and percentage relative to larger particles.

Conclusions: To the best of my knowledge, this study is the first to report a distinct IS–UFP profile in patients with MGI, which suggest an interaction effect of EI and NI on the IS–UFP content. This finding may further support the consideration of MGI as a distinct inflammatory phenotype, beyond the simple combination of EI and NI independently. In addition, reduced PFT parameters were associated with a specific change in the IS–UFP profile. The results of this study may shed light on the use of IS–UFP content as a biomarker for lungs inflammation and functional impairment. Further prospective studies are needed to establish a cause and effect relationship between lungs inflammation and functional impairment to the IS–UFP content.

Endovascularly retrieved clots may be a potential resource for diagnosing stroke etiology. This method may influence secondary prevention treatment. We measure thrombin activity eluted by serially washing clots. We concluded that an assay measuring the change in thrombin in clots retrieved during acute stroke endovascular thrombectomy procedures may serve as a diagnostic marker of the origin of the clot. The suggested mechanism for these differences may be the clot location before its retrieval, with high blood flow causing thrombin washout in atherosclerotic clots, in contrast to atrium appendage low blood flow retaining high thrombin levels.

Internal medicine is no doubt one of the main pillars of modern medicine. For years it has been considered to be the basis and foundation of medical education and proper clinical service. During the recent coronavirus disease 2019 (COVID-19) pandemic, internal medicine departments were recognized worldwide, and clearly in Israel, to be the true Corona Warriors that provided medical care to patients as well as support and comfort to families. Around the globe, the public applauded and appreciated the bravery of our medical staff, who without hesitation and under direct personal danger provided the best medical care possible despite the hardships of the time. The high personal price and even the heavy cost of staff member lives lost in offering medical care to the pubic did not stop our quest for ongoing medical research.

Coronavirus disease 2019 (COVID-19) affects different people in different ways. Most infected people develop mild to moderate illness and recover without hospitalization. This case report presents a patient who had difficulty eradicating the corona virus due to being treated with rituximab, which depletes B lymphocytes and therefore disables the production of neutralizing antibodies. The regen-COV-2 antibody cocktail consists of two monoclonal antibodies, casirivimab and imdevimab. This cocktail successfully helped the patient's immune system eradicate the virus without auto specific severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibody production. In vitro studies confirm that eradication of the intact the virus. This case report emphases the importance of providing external antiviral antibodies regularly, like the regen-COV-2 antibody cocktail, as post- and even pre- SARS-CoV-2 infection prophylaxis in patients treated with rituximab.

At the end of 2019, the world faced a new virus–coronavirus disease 2019 (COVID-19)–which quickly became a pandemic. It has become clear that the COVID-19 virus can affect various body systems. Over time, we are finding more and more diverse manifestations of the course of the disease itself, its consequences, and complications. There have been several studies and reviews describing circulating antibodies in patients infected with COVID-19 (e.g., antinuclear antibodies [ANA], anti-cardiolipin, anti-B2 glycoprotein, perinuclear anti-neutrophil cytoplasmic antibodies [p-ANCA], cytoplasmic ANCA [c-ANCA]). The development of autoimmune disorders has been reported (e.g., Graves' disease, systemic lupus erythematosus (SLE), immune thrombocytopenia [ITP], diabetes mellitus [DM] type 1, psoriasis). There are descriptions of COVID-19 associated vasculitis include Kawasaki-like symptoms in children and immunoglobulin A (IgA) vasculitis in children and adults [1].

The ongoing coronavirus disease 2019 (COVID-19) pandemic has led to more than 200 million infected cases and 4.6 million deaths worldwide, and the numbers continue to grow. The disease presentation varies, and while most patients will present with a mild disease course, 5% will eventually develop significant respiratory failure, some despite initially presenting with mild symptoms. Early detection of patients at risk for deterioration is crucial for decisions regarding hospitalization, monitoring, timing, and extent of treatment.

The coronavirus disease 2019 (COVID-19) pandemic has had a profound impact on our world and has cost millions their lives. It has disrupted economies and education systems and has taken away means of support from masses of people around the world. No wonder this pandemic is like a black hole, drawing in all resources and all expertise. In the scientific arena, the pandemic has created a tremendous opportunity for new and exciting synergies between different disciplines.

Background: An increased serum glucose level is a common finding among patients admitted to hospital with acute illness, including the intensive care unit (ICU), even without a history of previous diabetes mellitus (DM). Glycated hemoglobin (HbA1c) is not only a diagnostic tool for DM but may also has prognostic value for diabetic and non-diabetic populations.

Objectives: To assess the relationship between HbA1c level on admission and clinical outcome among patients admitted to the ICU due to cardiopulmonary disorders with hyperglycemia.

Methods: Patients consecutively admitted to the ICU due to cardiopulmonary disorders who presented with hyperglycemia at admission were evaluated during a 6-month period. HbA1c and serum glucose levels were tested on admission and during the first 24–48 hours of hospitalization. Patients were divided according to HbA1c and compared in term of demographics. We evaluated the effect of HbA1c levels at admission on the clinical outcomes.

Results: Of patients with cardiopulmonary disorders who presented with hyperglycemia at admission to the ICU, 73 had HbA1c levels ≥ 6%, 92 had HbA1c levels < 6%: 63/165 (38.2%) known as diabetic patients. The 30-day all-cause mortality was higher in the group with high HbA1c levels; 38/73 vs. 32/98 (P = 0.02). Increased length of stay in the ICU and Acute Physiology and Chronic Health Evaluation II (APACHE II) score were associated with HbA1c ≥ 6% (P < 0.022 and P < 0.026), respectively

Conclusions: HbA1c ≥ 6% has an important clinical prognostic value among diabetic and non-diabetic patients with cardiopulmonary disorders and hyperglycemia.

Background: Most dyspneic patients in internal medicine departments have co-morbidities that interfere with the clinical diagnosis. The role of brain natriuretic peptide (BNP) levels is well-established in the acute setting but not in hospitalized patients.

Objectives: To evaluate the additive value of BNP tests in patients with dyspnea admitted to medical wards who did not respond to initial treatment.

Methods: We searched the records of patients who were hospitalized in the department of internal medicine D at Sheba Medical Center during 2012 and were tested for BNP in the ward. Data collected included co-morbidity, medical treatments, diagnosis at presentation and discharge, lab results including BNP, re-hospitalization, and mortality at one year following hospitalization.

Results: BNP results were found for 169 patients. BNP was taken 1.7 ± 2.7 days after hospitalization. According to BNP levels, dividing the patients into tertiles revealed three equally distributed groups with a distinctive character. The higher tertile was associated with higher rates of cardiac co-morbidities, including heart failure, but not chronic obstructive pulmonary disease. Higher BNP levels were related to one-year re-hospitalization and mortality. In addition, higher BNP levels were associated with higher rates of in-admission diagnosis change.

Conclusions: BNP levels during hospitalization in internal medicine wards are significantly related to cardiac illness, the existence of heart failure, and patient prognosis. Thus, BNP can be a useful tool in managing dyspneic patients in this setting.